CVE-2026-115507
Vikunja 2.2.0 before 2.7.1 contains an HTML injection vulnerability in CreateConversationalHeader in pkg/notifications/mail.go that interpolates display names and task and project titles raw into email anchors.
Does this matter?
Lower severity and a low EPSS score (0.20%). Track it; it rarely justifies an emergency change on its own.
Description
Vikunja 2.2.0 before 2.7.1 contains an HTML injection vulnerability in CreateConversationalHeader in pkg/notifications/mail.go that interpolates display names and task and project titles raw into email anchors. Authenticated users can craft titles or display names that close the anchor and inject phishing links into task-comment and task-mention notification emails sent to project members.
- CVSS 4.0
- 5.1 MEDIUMCVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:P/VC:N/VI:L/VA:N/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/M
- EPSS
- 0.20% probability · 9th percentile
- Public exploits
- None in Exploit-DB
- CISA KEV
- Not listed
- Weakness
- CWE-79
- Source
- disclosure@vulncheck.com
EPSS moved from 0.2% on 23 October 2026 to 0.2% on 27 October 2026.
References
- https://github.com/go-vikunja/vikunja
- https://github.com/go-vikunja/vikunja/blob/v2.7.0/pkg/notifications/mail.go#L132-L148
- https://github.com/go-vikunja/vikunja/commit/18ff05932632c65dbc90a88118597989c6af4bf9
- https://github.com/go-vikunja/vikunja/releases/tag/v2.7.1
- https://github.com/go-vikunja/vikunja/security/advisories/GHSA-rp33-8f2m-hm6j
- https://www.vulncheck.com/advisories/vikunja-2.2.0-before-2.7.1-html-injection-via-notification-email-header
Source: NVD record, EPSS from FIRST.org, KEV from CISA, exploits from Exploit-DB. Refreshed daily. Download this record as JSON.